EP2202875A1 - Konversionssystem mindestens eines elektrischen Eingangsgleichstroms in einen mehrphasigen Ausgangswechselstrom - Google Patents

Konversionssystem mindestens eines elektrischen Eingangsgleichstroms in einen mehrphasigen Ausgangswechselstrom Download PDF

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Publication number
EP2202875A1
EP2202875A1 EP09306210A EP09306210A EP2202875A1 EP 2202875 A1 EP2202875 A1 EP 2202875A1 EP 09306210 A EP09306210 A EP 09306210A EP 09306210 A EP09306210 A EP 09306210A EP 2202875 A1 EP2202875 A1 EP 2202875A1
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Prior art keywords
magnetic
coupling
current
coils
coil
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French (fr)
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EP2202875B1 (de
Inventor
Valentin Costan
Bernard Gollentz
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GE Energy Power Conversion Technology Ltd
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Converteam Technology Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel

Definitions

  • the invention also relates to a module for converting an input direct electric current supplied into two input terminals, to an alternating electric output current comprising a plurality M of phases and delivered in M output terminals, each terminal of output corresponding to a phase of the output current.
  • the invention also relates to a conversion system equipped with a plurality of conversion modules connected in parallel with each other.
  • the invention also relates to an electrical power equipment equipped with at least one such conversion system.
  • each inverter 2A, 2B, 2C is suitable for converting the input DC current into an intermediate three-phase current delivered at three intermediate terminals Ui, Vi, Wi, i being respectively equal to 1, 2 or 3, respectively corresponding to the inverters 2A, 2B, 2C.
  • Each intermediate terminal Ui, Vi, Wi corresponds to a respective phase of the intermediate three-phase current.
  • the conversion system also comprises three magnetic couplers 6A, 6B, 6C, each being disposed at the output of a respective inverter 2A, 2B, 2C.
  • Each of the three magnetic couplers 6A, 6B, 6C comprises three electromagnetic coupling coils 8, all identical.
  • Each coupling coil 8 is wound around a respective core 10, the three cores 10 of a magnetic coupler 6A, 6B, 6C being interconnected by magnetic connecting bars 12.
  • a core 10 provided with a coil of coupling 8 forms a wound column.
  • the three coupling coils 8 of the first magnetic coupler 6A are each connected by one of their ends to an intermediate terminal U1, U2, U3 respectively, the intermediate terminals U1, U2, U3 corresponding to the first phase of each three-phase inverter 2A, 2B , 2C, and at their other end to the same output terminal U corresponding to the first phase of the three-phase output current.
  • the three coupling coils 8 of the second magnetic coupler 6B are each connected by one of their ends to a respective intermediate terminal V1, V2, V3, and at their other end to a same output terminal V corresponding to the second phase three-phase output current.
  • the three coupling coils 8 of the third magnetic coupler 6C are each connected by one of their ends to an intermediate terminal W1, W2, W3 respective, and at their other end to the same output terminal W corresponding to the third phase of the three-phase output current.
  • each magnetic coupler 6A, 6B, 6C is equal to the number of inverters 2A, 2B, 2C in parallel.
  • conversion systems of this type are not modular, since the addition of an inverter, in parallel with other inverters already present, requires adding a magnetic core provided with a coupling coil in each magnetic coupler. In addition, conversion systems of this type generate relatively large line voltage drops.
  • the aim of the invention is to propose a modular conversion system, in order to facilitate the addition of an inverter in parallel, and to obtain a lower common mode inductance between the phases of the different inverters, in order to reduce the Line voltage drops generated.
  • the subject of the invention is a conversion system of the aforementioned type, characterized in that it comprises N x M second electromagnetic coupling coils, each being connected at one end to the other end of a first respective coupling coil and wound around a core separate from that of the respective first coil, in that a first coupling coil and a second coupling coil are wound around each core, in that the first and second coils of the same core correspond to the same phase of each intermediate AC current, and in that the first and second electromagnetic coils respectively are intended to be traversed by a respective common-mode current, and arranged so that, for each magnetic core, the common mode flow generated by the first coil is opposite to the common mode flow generated by the second bob ine, each output terminal of the system being connected to the other ends of the M second coils corresponding to the same phase of the intermediate AC currents.
  • a first coupling coil, through which an intermediate current flows, is wound around a core and connected to a second coupling coil wound around another core.
  • the other core also has another first coil, through which another intermediate current flows, so that the respective common mode flows of each coil of this other core interact with each other.
  • the other first coil and the second coil, wound around the other core correspond to the same phase of each intermediate AC current, so that the respective common mode flows of each coil are in phase.
  • the combination of the first and second electromagnetic coupling coils for each phase of the output current thus makes it possible to reduce the common-mode current between the different phases of the output current.
  • the common mode flows generated respectively by the first coil and by the second coil of the same core are in phase and in opposite directions, so that they partially cancel.
  • Common mode line voltage drops are therefore greatly reduced.
  • this reduction in line voltage drops is obtained without increasing the inductance, and therefore the space requirement, of the first and second coupling coils.
  • the magnetic components of the conversion system according to the invention make it possible to obtain both a low common mode inductance (low voltage drop) and a high differential mode inductance (inductance limiting the circulating currents).
  • each magnetic coupler makes it possible to reduce the zero sequence current for each phase of the output current. This is feasible both in the case of a single input bus common to all inverters, and in the case of a separate input bus for each inverter. However, in the case of a separate input bus for each inverter, it will be more advantageous for reasons of cost and bulk, to connect a high-value line resistor between the capacitive midpoint of each bus and the bus. electrical ground.
  • the subject of the invention is also a system for converting at least one input DC electric current into an output AC electric current comprising a plurality of M phases and delivered in M output terminals, each output terminal corresponding to one phase of the output current, characterized in that it comprises plurality N of conversion modules as defined above, in that the N conversion modules are connected in parallel with each other, the N output terminals of each respective module which correspond to the same phase of the output current being interconnected, and in that each first coupling terminal of a conversion module is connected to a second coupling terminal of another conversion module by an electric cable , so that the first and second associated coupling coils correspond to the same phase of each intermediate AC current, and in that the first, respectively,
  • electromagnetic coils are intended to be traversed by a respective common-mode current, and arranged so that, for each magnetic core, the common-mode flow generated by the first coil is in the opposite direction to the common-mode flow. generated by the second coil.
  • the invention also relates to an electrical power equipment, characterized in that it comprises at least one conversion system as defined above.
  • the conversion system of the invention comprises in the first place the same components as those of the figure 1 , namely three three-phase inverters 2A, 2B, 2C arranged in parallel with each other, three magnetic couplers 6A, 6B, 6C each having three first electromagnetic coupling coils 8.
  • Each first electromagnetic coupling coil 8 is wound around a respective core, cores 10 of the same magnetic coupler 6A, 6B, 6C being interconnected by magnetic connecting bars 12.
  • the cores 10 and the magnetic connecting bars 12 of the same magnetic coupler 6A, 6B, 6C are substantially coplanar.
  • the cores 10 are substantially parallel to each other, and the magnetic connecting bars 12 are substantially perpendicular to the cores 10.
  • each three-phase inverter 2A, 2B, 2C is connected to a respective bus 4A, 4B, 4C for the circulation of an input direct electric current.
  • the three input buses 4A, 4B, 4C are distinct from each other.
  • Each input bus has a capacitive midpoint 5A, 5B, 5C connected via a line resistor R to the electrical ground.
  • the line resistor R is, for example, identical and of high value for each of the input buses 4A, 4B, 4C.
  • Each three-phase inverter 2A, 2B, 2C is able to convert the input DC current flowing on its associated input bus 4A, 4B, 4C, into an intermediate three-phase current delivered into three intermediate terminals.
  • the intermediate terminals at the output of a first three-phase inverter 2A are U1, V1 and W1.
  • the three intermediate terminals at the output of a second three-phase inverter 2B, respectively at the output of a third three-phase inverter 2C are U2, V2 and W2, respectively U3, V3 and W3.
  • Each of the first coupling coils 8 of a first magnetic coupler 6A is connected at one of its ends to a respective intermediate terminal U1, V1, W1 of the first three-phase inverter 2A.
  • each of the three coupling coils 8 of the second magnetic coupler 6B is connected at one of its ends to a respective intermediate terminal U2, V2, W2 of a second three-phase inverter 2B.
  • each of the three coupling coils 8 of a third and last magnetic coupler 6C is connected at one of its ends to a respective intermediate terminal U3, V3, W3 of the third three-phase inverter 2C.
  • the conversion system of the invention further comprises, for each magnetic coupler 6A, 6B, 6C, three second electromagnetic coupling coils 14 wound around a respective magnetic core 10.
  • the second coupling coils 14 are all identical to the first coupling coils 8.
  • the conversion system of the invention further comprises three modules 16A, 16B, 16C conversion of a DC input to a three-phase output.
  • a first module 16A comprises the first inverter 2A and the first associated magnetic coupler 6A.
  • a second module 16B includes the second inverter 2B and the second associated magnetic coupler 6B, and
  • a third module 16C includes the third inverter 2C and the third associated magnetic coupler 6C.
  • Each module 16A, 16B, 16C has two input terminals 18, three output terminals 20, three first coupling terminals 22 and three second coupling terminals 24.
  • Each of the three output terminals 20 corresponds to a respective phase of the current. exit.
  • each module 16A, 16B, 16C comprises a protection cabinet 26 in which are arranged the polyphase inverter 2A, 2B, 2C and the associated magnetic coupler 6A, 6B, 6C.
  • the two input terminals 18, the 3 output terminals 20, the first 3 coupling terminals 22 and the 3 second terminals coupling 24 are attached to the cabinet 26 and accessible from outside the cabinet.
  • Each first coupling coil 8 is connected by the other of its ends to a first respective coupling terminal 22.
  • Each second coupling coil 14 is connected at one end to a respective output terminal 20, and at the other end thereof to a respective second coupling terminal 24.
  • Each first coupling terminal 22 of a conversion module 16A, 16B, 16C is intended to be connected to a second coupling terminal 24 of another conversion module 16A, 16B, 16C by a not shown electrical cable, so that that the first and second associated coupling coils 8, 14 correspond to the same phase of each intermediate AC current.
  • each second electromagnetic coupling coil 14 of the first magnetic coupler 6A is connected at one end to the other end of a first respective coupling coil 8 of the second magnetic coupler 6B, as indicated by the connection points A2. , B2, C2.
  • each second coupling coil 14 of the second magnetic coupler 6B is connected at one end to the other end of a first respective coupling coil 8 of the third magnetic coupler 6C, as indicated by the connection points A3, B3, C3.
  • each second coupling coil 14 of the third magnetic coupler 6C is connected at one end to the other end of a first respective coupling coil 8 of the first magnetic coupler 6A, as indicated by the connection points A1, B1, C1.
  • Each second coupling coil 14 is thus wound around a magnetic core 10 distinct from that of the first coupling coil 8, to which it is connected.
  • the core of the first coupling coil 8 and the core of the second coupling coil 14 correspond to the same phase of each intermediate three-phase current.
  • the conversion system comprises three output terminals U, V and W, each intended to deliver a phase of the three-phase output current.
  • Each output terminal U, V, W is connected to the respective output terminals of each module which correspond to the same phase of the intermediate AC currents.
  • the first coupling coil 8 and the second coupling coil 14 correspond to the same phase of the three-phase output current.
  • the currents intended to traverse respectively the first coil 8 and the second coil 14 of the same core 10 are in phase.
  • the first coupling coils 8 are all wound in the same direction, and the second coupling coils 14 are all wound in the same second direction.
  • the first sense and the second sense are identical.
  • the first coils 8 and the second coils 14 are arranged in such a way that the respective fluxes on each core 10, intended to be generated by the proper currents to flow through the coils 8, 14, are in opposite directions, as indicated by the points represented. near the coils 8, 14.
  • the first and second electromagnetic coils 8, 14 wound around the same core 10 are arranged successively along said core 10.
  • the magnetic couplers 6A, 6B, 6C are characterized by three electrical parameters, namely a differential mode inductor, a common mode inductor and a zero sequence mode inductor.
  • the differential mode inductor makes it possible to limit the currents proper to flow between the same phase of the different inverters 2A, 2B, 2C in parallel with each other.
  • Differential mode inductors Ldif_U1, Ldif_U2 and Ldif_U3, visible on the figure 3 allow, for example, to limit the clean currents to flow between the corresponding phases at the intermediate terminals U1, U2 and U3.
  • the first coupling coil 8 is traversed by a current I U1
  • the second coupling coil 14 is traversed by a current I U2 corresponding to the first phase of the second inverter 2B.
  • ⁇ of ⁇ 1 Ldif_U ⁇ 1 2 ⁇ xNbS ⁇ I of ⁇ 1
  • the first coupling coil 8 is traversed by the current I U2
  • the second coupling coil 14 is traversed by a current I U3 .
  • the first coupling coil 8 is traversed by the current I U3 and the second coupling coil 14 is traversed by the current I U1 .
  • Ldif_U1, Ldif_U2 and Ldif_U3 are deduced from the equations (II), (III), (V) and (VII) and are written in the form:
  • Differential mode inductors Ldif_V1, Ldif_V2 and Ldif_V3, respectively Ldif_W1, Ldif_W2 and Ldif_W3 respectively corresponding to the second and third magnetic cores of each of the magnetic couplers 6A, 6B, 6C, as well as the corresponding magnetic fluxes created in these magnetic cores 10, are determined in a similar way.
  • Ldif_V1, Ldif_V2 and Ldif_V3, respectively Ldif_W1, Ldif_W2 and Ldif_W3 are written in the form:
  • differential mode inductances are mainly determined by the total reluctance R core of a wound magnetic core.
  • all the differential mode inductances are equal, because all the coils 8, 14 have the same number NbS of turns and all the magnetic cores 10 are identical and have the same total reluctance R core .
  • each differential mode inductor will be chosen with a value as large as possible, while seeking a compromise between the electrical performance and the size of each magnetic coupler 6A, 6B, 6C.
  • common mode inductors Lc_U1, Lc_U2 and Lc_U3 are suitable for reducing the current ripple to three times the switching frequency.
  • the common mode inductors Lc_U1 to Lc_UN are suitable for reducing the current ripples to N times the switching frequency.
  • common-mode inductors Lc_V1, Lc_V2 and Lc_V3, respectively Lc_W1, Lc_W2 and Lc_W3, are suitable for reducing the ripples. currents flowing in the terminals V1, V2 and V3, respectively W1, W2 and W3.
  • Each common mode inductance Lc_U1 to Lc_U3, Lc_V1 to Lc_V3 and Lc_W1 to Lc_W3 is mainly determined by leak flows associated with each respective coupling coil 8, 14 of the corresponding magnetic coupler 6A, 6B, 6C.
  • the first coil 8 and the second coil 14 of the same core 10 are traversed by a same phase of the respective intermediate currents.
  • the first coil 8 and the second coil 14 of the same core 10 are further arranged in such a way that the leakage flow generated by the first coil 8 traversed by a first common-mode current is opposite to the leakage flux generated by the second coil 14 traversed by a second common mode current. Since the coils 8, 14 are identical and the common-mode currents are of substantially equal intensity, the leakage flows generated by the first coil 8 and by the second coil 14 are substantially equal in absolute value. The leak flows generated by the first coil 8 and the second coil 14 are in phase, of opposite directions and substantially equal in absolute value, so that they cancel out substantially completely.
  • the common mode inductors Lc_U1 to Lc_U3, Lc_V1 to Lc_V3 and Lc_W1 to Lc_W3 therefore have low values, and the voltage drop across the load, not shown and connected to the terminals U, V and W of the conversion system, is thus greatly reduced.
  • homopolar inductances Lh1, Lh2 and Lh3 are able to reduce respective homopolar currents I h1 , I h2 and I h3 .
  • the first inverter 2A, respectively the second inverter 2B, respectively the third inverter 2C can be represented by a homopolar voltage generator delivering a voltage Vh1, respectively Vh2, respectively Vh3.
  • the line resistor R being connected for each respective bus 4A, 4B, 4C at its capacitive mid-point 5A, 5B, 5C and the electrical ground, upstream of each inverter 2A, 2B, 2C, the equivalent circuit in homopolar mode comprises this resistor R for each line corresponding to a respective inverter 2A, 2B, 2C, and upstream of each homopolar voltage generator.
  • Each homopolar mode inductance Lh1, Lh2, Lh3 depends on the reluctance of the air outside the corresponding magnetic core 10. Since this reluctance is very large, the homopolar mode inductors Lh1, Lh2 and Lh3 have low values.
  • each line resistor R has a very high value, the homopolar currents I h1 , I h2 and I h3 have a small value, although the homopolar mode inductances Lh1, Lh2 and Lh3 are of low value.
  • the particular combination, described above, of the first and second electromagnetic coupling coils 8, 14 for each phase of the three-phase output current makes it possible to reduce the common-mode current able to flow between the phases of the different inverters, while reducing the value of the inductance of the electromagnetic coupling coils 8, 14, in order to reduce the generated line voltage drops.
  • the zero sequence mode currents flowing in the conversion system also have low values, due to the presence of a high value line resistor R for each input bus 4A, 4B, 4C.
  • the inductance value chosen for the electromagnetic coupling coils 8, 14 makes it possible to obtain a limited differential mode current between the different phases.
  • the conversion system according to the invention thus makes it possible to obtain very good electrical performances.
  • FIG 6 illustrates a second embodiment of the invention for which elements similar to the first embodiment, described above, are identified by identical references, and are therefore not described again.
  • the three three-phase inverters 2A, 2B and 2C are connected to a single bus 4 for circulating the input current.
  • the three-phase inverters 2A, 2B, 2C are connected in parallel with the common input bus 4.
  • the input bus 4 comprises a capacitive midpoint 5 connected to the electrical ground.
  • each magnetic coupler 6A, 6B, 6C further comprises, according to the second embodiment of the invention, a magnetic return column 28 connected by the magnetic connecting bars 12 to the three corresponding magnetic cores 10.
  • the magnetic return column 28 is intended to reduce the zero sequence current for each respective phase of the output current.
  • Each magnetic coupler 6A, 6B, 6C does not have a winding wound around the respective magnetic return column 28.
  • the cores 10, the magnetic connecting bars 12 and the magnetic return column 28 of the same magnetic coupler 6A, 6B, 6C are substantially coplanar.
  • the cores 10 and the magnetic return column 28 are substantially parallel to each other, and the magnetic connecting bars 12 are substantially perpendicular to the cores 10 and to the magnetic return column 28.
  • this second embodiment is similar to that of the first embodiment.
  • the differential mode operation and the common mode operation of the second embodiment are identical to that of the first embodiment and are therefore not described again.
  • the equivalent circuit in homopolar mode of the conversion system according to the second embodiment does not include line resistance for each three-phase inverter, 2A, 2B, 2C.
  • three-phase inverters 2A, 2B, 2C are all connected in parallel to the same input bus 4, whose capacitive midpoint 5 is directly connected to the electrical ground.
  • each three-phase inverter 2A, 2B, 2C can not be equipped with a separate line resistor upstream of its input. It is then necessary that the homopolar mode inductors Lh1, Lh2 and Lh3 have high values, so that each respective homopolar current I h1 , I h2 and I h3 has a low value.
  • ⁇ Rj 2 ⁇ xNbS ⁇ xI hj 3 ⁇ x ⁇ 3 ⁇ x ⁇ R return + R core where j varies respectively from 1 to 3, R return represents the total reluctance of the magnetic return column 28.
  • the homopolar mode inductance Lhj is deduced from equations (XII) and (XIII), and is written in the form:
  • the hj 2 ⁇ xNbS 2 3 ⁇ x ⁇ 3 ⁇ x ⁇ R return + R core
  • the addition of such a magnetic return column 28 thus makes it possible to control the value of the homopolar inductance Lhj by means of the magnetic flux ⁇ Rj flowing through the return column 28.
  • the homopolar inductance Lhj depends on the total reluctance R return of the magnetic return column 28 and the total reluctance R core of each wound magnetic core 10.
  • the magnetic return column 28 and each wound magnetic core 10 are chosen with a small total return reluctance value R return , R respective core , to obtain a high value for the homopolar inductance Lhj, thus resulting in a low homopolar current I nj .
  • first and second electromagnetic coils 8, 14 corresponding to the same core 10 are wound concentrically around said magnetic core 10.
  • first and second electromagnetic coils 8, 14 are different and have distinct numbers of turns.
  • each magnetic coupler 6A, 6B, 6C comprises at least two magnetic return columns 28.
  • the magnetic return columns 28 are, for example, arranged symmetrically, on either side of the magnetic cores 10 of the coupler.
  • each input bus 4A, 4B, 4C has a line resistor R A , R B , R C , the resistors R A , R B and R C being of distinct respective values.
  • the cores 10 are distributed around the circumference of a fictitious cylinder, the central angle between two successive cores being equal to 2 ⁇ ⁇ / M, where M is the number of cores 10 of each magnetic coupler.
  • Each core has an upper end and a lower end.
  • the upper ends of the cores 10 are connected to each other via magnetic connecting rods 12 upper, and the lower ends of the cores 10 are interconnected via magnetic connecting rods 12 lower.
  • Each connecting bar has a connection end with a core 10, and a remote end of said core 10.
  • Each remote end of the connecting bars 12 is machined in the form of a point, the apex angle of the tip being equal to 2 x ⁇ / M degrees.
  • Each remote end of a upper connecting bar 12, respectively lower, is attached to (M-1) other remote ends of the upper connecting bars 12, respectively lower.
  • the union of the upper and lower link magnetic bars 12, respectively, is substantially coplanar, and in the form of a star.
  • the coils 8, 14 are wound around the cores 10.
  • the magnetic return column 28 is arranged substantially parallel to the cores 10. More specifically, the return column 28 connects the union of the remote ends of the connecting bars 12 superior to the union of the remote ends of the lower connecting bars 12.
  • the return column 28 has an air gap in its central part, and comprises an upper element and a lower element, separated by the gap and substantially identical. The return column 28 does not have a winding.
  • the conversion system comprises N conversion modules, each comprising a polyphase inverter and an associated magnetic coupler.
  • Each of the N conversion modules comprises two input terminals 18, M output terminals 20, M first coupling terminals 22 and M second coupling terminals 24.
  • Each of the N magnetic couplers comprises M first coupling coils 8, M second coils 14 and M magnetic cores 10.
  • each of the M magnetic cores 10 of a magnetic coupler are concentrically wound, or successively, a first coupling coil 8 and a second coupling coil 14 correspondingly.
  • each of the N magnetic couplers comprises at least one return column 28.
  • the invention applies more generally to any form of permutation for connecting a second coil of a magnetic coupler to the first coil of another magnetic coupler, the first and the second coil corresponding to the same phase of the polyphase output current.
  • the invention is therefore not limited to the connection in the form of circular permutation used to connect the first coils and second coils of the exemplary embodiments of the invention. figures 2 and 6 .
  • the conversion system according to the invention is particularly modular. Indeed, in the case, for example, of a need for additional electrical power, it suffices to add one or more conversion modules to the conversion system according to the invention previously implemented.
  • the addition of an additional module is very simple, since it is sufficient to connect upstream to an input bus via its input terminals 18, then to connect, for example, its first coupling terminals 22 to the second coupling terminals 24 of the previous module, and to connect its second coupling terminals 24 to the first coupling terminals 22 of the module next. It is understood that if the additional module is in the last position, the next module is the first module, and if the additional module is in first position, the previous module is the last module. The additional module is finally connected downstream to the output terminals of the system via its output terminals 20.

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  • Power Engineering (AREA)
  • Inverter Devices (AREA)
EP09306210.7A 2008-12-24 2009-12-11 Konversionssystem mindestens eines elektrischen Eingangsgleichstroms in einen mehrphasigen Ausgangswechselstrom Active EP2202875B1 (de)

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FR0859062A FR2940550B1 (fr) 2008-12-24 2008-12-24 Systeme de conversion d'au moins un courant electrique continu d'entree en un courant electrique alternatif polyphase de sortie

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EP2202875A1 true EP2202875A1 (de) 2010-06-30
EP2202875B1 EP2202875B1 (de) 2013-08-21

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JP5779561B2 (ja) * 2012-09-10 2015-09-16 株式会社日立製作所 電力変換システム
ES2894798T3 (es) 2015-10-28 2022-02-15 Ge Energy Power Conversion Technology Ltd Sistema de conversión de potencia bidireccional para carga eléctrica monofásica y procedimiento de conversión de potencia correspondiente
TWI590555B (zh) * 2016-09-29 2017-07-01 台達電子工業股份有限公司 電源轉換裝置、供電系統及其控制方法
FR3060906B1 (fr) 2016-12-16 2019-05-24 Ge Energy Power Conversion Technology Limited Convertisseur continu-alternatif
CN109742969B (zh) * 2019-01-11 2020-05-19 北京机械设备研究所 一种基于磁耦合的三相逆变器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455078A (en) * 1987-08-26 1989-03-02 Fuji Electric Co Ltd Feeding system using three-phase multiple pwm inverter
DE3826524A1 (de) * 1987-09-10 1989-03-23 Asea Brown Boveri Leistungseinspeiseschaltung mit saugdrossel
WO1990010339A1 (de) * 1989-03-02 1990-09-07 Siemens Aktiengesellschaft Saugdrehdrossel und verfahren zum parallelbetrieb zweier stromrichter
US6169677B1 (en) * 1998-10-15 2001-01-02 Kabushiki Kaisha Toshiba Power converting system multiplexed with voltage dividing transformers, the voltage transformers, and controller for the system
KR20010083809A (ko) * 2001-06-30 2001-09-03 강창원 전력라인에서의 고조파 저감장치
KR100428459B1 (ko) * 2003-11-07 2004-04-28 주식회사 에너테크 고조파 저감장치
JP2008178180A (ja) * 2007-01-17 2008-07-31 Fuji Electric Systems Co Ltd 整流回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416458A (en) * 1991-04-25 1995-05-16 General Signal Corporation Power distribution transformer for non-linear loads
US5555494A (en) * 1993-09-13 1996-09-10 Morris; George Q. Magnetically integrated full wave DC to DC converter
JPH1055078A (ja) 1996-08-08 1998-02-24 Ricoh Co Ltd 電子写真用トナー、その定着方法及びそれを用いた画像形成装置
FR2900289B1 (fr) * 2006-04-20 2008-08-29 Converteam Sas Circuit de commutation pour la mise en serie des igbt
EP2025051B1 (de) * 2006-06-06 2014-12-31 Ideal Power Inc. Universeller stromrichter
FR2933547B1 (fr) * 2008-07-01 2010-09-10 Converteam Sas Ondulateur trois niveaux

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455078A (en) * 1987-08-26 1989-03-02 Fuji Electric Co Ltd Feeding system using three-phase multiple pwm inverter
DE3826524A1 (de) * 1987-09-10 1989-03-23 Asea Brown Boveri Leistungseinspeiseschaltung mit saugdrossel
WO1990010339A1 (de) * 1989-03-02 1990-09-07 Siemens Aktiengesellschaft Saugdrehdrossel und verfahren zum parallelbetrieb zweier stromrichter
US6169677B1 (en) * 1998-10-15 2001-01-02 Kabushiki Kaisha Toshiba Power converting system multiplexed with voltage dividing transformers, the voltage transformers, and controller for the system
KR20010083809A (ko) * 2001-06-30 2001-09-03 강창원 전력라인에서의 고조파 저감장치
KR100428459B1 (ko) * 2003-11-07 2004-04-28 주식회사 에너테크 고조파 저감장치
JP2008178180A (ja) * 2007-01-17 2008-07-31 Fuji Electric Systems Co Ltd 整流回路

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413485A1 (de) * 2010-07-29 2012-02-01 Converteam Technology Ltd System zur Einspeisung einer Wechselstromladung aus einem Alternativnetz ohne Gegenwart eines Transformators zwischen dem Netz und dem Einspeisungssystem sowie Antriebskette, die ein solches System umfasst
FR2963509A1 (fr) * 2010-07-29 2012-02-03 Converteam Technology Ltd Systeme d'alimentation d'une charge en courant alternatif a partir d'un reseau alternatif sans presence d'un transformateur entre le reseau et le systeme d'alimentation, et chaine d'entrainement comprenant un tel systeme
FR2999357A1 (fr) * 2012-12-12 2014-06-13 Ge Energy Power Conversion Technology Ltd Chaine d'entrainement electrique d'un dispositif, et equipement de compression de gaz comprenant une telle chaine
CN103872969A (zh) * 2012-12-12 2014-06-18 通用电气能源能量变换技术有限公司 电力传动系统以及包括此种传动系统的气体压缩设备
EP2744101A1 (de) * 2012-12-12 2014-06-18 GE Energy Power Conversion Technology Ltd Elektrischer Antriebsstrang einer Vorrichtung, und Gaskompressionsanlage mit einem derartigen Antriebsstrang
US9276457B2 (en) 2012-12-12 2016-03-01 Ge Energy Power Conversion Technology Ltd. Electric drivetrain of a device, and gas compression equipment including such a drivetrain
CN103872969B (zh) * 2012-12-12 2018-03-30 通用电气能源能量变换技术有限公司 电力传动系统以及包括此种传动系统的气体压缩设备
EP3255774A1 (de) * 2016-06-07 2017-12-13 GE Energy Power Conversion Technology Ltd System zur umwandlung von elektrischer energie, die aus einem netz geliefert wird, und umwandlungsverfahren mittels eines solchen umwandlungssystems
US10790697B2 (en) 2016-06-07 2020-09-29 Ge Energy Power Conversion Technology Limited System for converting electrical energy supplied by a network and a conversion method implemented by means of such a conversion system

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US8467207B2 (en) 2013-06-18
US20100165678A1 (en) 2010-07-01
EP2202875B1 (de) 2013-08-21
FR2940550A1 (fr) 2010-06-25
FR2940550B1 (fr) 2011-02-11

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